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STOCKHOLDERS' EQUITY (Treasury Stock) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Treasury Stock |  |  |
Aggregate cost of shares repurchased during the period | $ 2,663 | $ 201 |
Treasury stock (in shares) | 3,172,019 |  | 3,097,634
Stock Repurchase Program |  |  |
Treasury Stock |  |  |
Number of shares repurchased during the period | 74,385 |  |
Aggregate cost of shares repurchased during the period | $ 2,700 |  |
Amount available for repurchase | $ 19,600 |  | $ 22,300

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